<template>
  <div class="login-container" :style="{backgroundImage:'url('+require('../../assets/bg.png')+')'}">
    <div class="login-wrap">
      <div class="title-container">
        <div class="title">
          <img class="logo" src="@/assets/logo.png" alt="">
          <h3>测试 V1.0</h3>
        </div>
      </div>
      <div class="login-form-wrap" :style="{backgroundImage:'url('+require('../../assets/loginbg.png')+')'}">
        <h4>用户登录</h4>
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on" label-position="left">
          <!--<el-form-item prop="tenantCode">-->
          <!--<span class="svg-container">-->
          <!--<svg-icon icon-class="peoples" />-->
          <!--</span>-->
          <!--<el-input-->
          <!--ref="tenantCode"-->
          <!--v-model="loginForm.tenantCode"-->
          <!--placeholder="租户编码"-->
          <!--name="tenantCode"-->
          <!--type="text"-->
          <!--maxlength="64"-->
          <!--tabindex="1"-->
          <!--autocomplete="on"-->
          <!--/>-->
          <!--</el-form-item>-->

          <el-form-item prop="username">
            <span class="svg-container">
              <svg-icon icon-class="user" />
            </span>
            <el-input
              ref="username"
              v-model="loginForm.username"
              placeholder="员工编号"
              name="username"
              type="text"
              tabindex="2"
              autocomplete="on"
            />
          </el-form-item>

          <el-tooltip v-model="capsTooltip" content="Caps lock is On" placement="right" manual>
            <el-form-item prop="password">
              <span class="svg-container">
                <svg-icon icon-class="password" />
              </span>
              <el-input
                :key="passwordType"
                ref="password"
                v-model="loginForm.password"
                :type="passwordType"
                placeholder="密码"
                name="password"
                tabindex="3"
                autocomplete="on"
                @keyup.native="checkCapslock"
                @blur="capsTooltip = false"
                @keyup.enter.native="handleLogin"
              />
              <span class="show-pwd" @click="showPwd">
                <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
              </span>
            </el-form-item>
          </el-tooltip>

          <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">
            登录
          </el-button>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>

export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value.length === 0) {
        callback(new Error('请输入用户名！'))
      } else if (value.length > 0 && value.length < 3) {
        callback(new Error('用户名长度最小为3'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length === 0) {
        callback(new Error('请输入密码！'))
      } else if (value.length > 0 && value.length < 6) {
        callback(new Error('密码长度最小为6'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        tenantCode: this.tenantCode || '10001',
        username: this.username || 'admin',
        password: this.password || '666888'
      },
      loginRules: {
        tenantCode: [{ required: true, trigger: 'blur', message: '请输入租户编码！' }],
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      redirect: undefined,
      otherQuery: {}
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    checkCapslock(e) {
      const { key } = e
      this.capsTooltip = key && key.length === 1 && (key >= 'A' && key <= 'Z')
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm)
            .then(() => {
              this.queryCurrentAuthority()
            })
            .catch(() => {
              this.loading = false
            })
        } else {
          return false
        }
      })
    },
    queryCurrentAuthority() {
      this.$store.dispatch('user/queryCurrentAuthority', this.loginForm.username)
        .then(() => {
          this.$router.push({ path: this.redirect || '/', query: this.otherQuery })
          this.loading = false
        })
        .catch(() => {
          this.loading = false
        })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    }
  }
}
</script>

<style lang="scss">

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  background-size: 100% 100%;
  .login-wrap{
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 800px;
    .logo{
      width: 60px;
      vertical-align: middle;
      margin-right: 12px;
    }
    h3{
      display: inline-block;
      font-size:36px;
      font-family:Adobe Heiti Std;
      font-weight:normal;
      color:rgba(0,191,244,1);
      line-height:50px;
      background:linear-gradient(0deg,rgba(0,159,241,1) 0%, rgba(0,232,207,1) 100%);
      -webkit-background-clip:text;
      -webkit-text-fill-color:transparent;
      margin: 0;
    }
    .login-form-wrap {
      width:100%;
      max-width: 100%;
      padding:   70px 90px;
      margin: 0 auto;
      overflow: hidden;
      background-size: 100% 100%;
      text-align: center;
      h4{
        font-size:24px;
        font-weight:400;
        color:rgba(0,191,244,1);
        margin: 0 0 50px 0;
      }
    }
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    .set-language {
      color: #fff;
      position: absolute;
      top: 3px;
      font-size: 18px;
      right: 0px;
      cursor: pointer;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}

.globalFooter {
  margin: 48px 0 24px 0;
  padding: 0 16px;
  text-align: center;

  .links {
    margin-bottom: 8px;

    a {
      color: fade(#000, 45%);
      transition: all 0.3s;

      &:not(:last-child) {
        margin-right: 40px;
      }

      &:hover {
        color: fade(#000, 65%);
      }
    }
  }
  .copyright {
    color: rgba(0,0,0,0.45);
    font-size: 14px;
  }
}
</style>
